A nuclear bunker built to shelter the politicians and important people of Scotland in case of nuclear attack.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

Thanks to modern navigational tools we now know that the true prime meridian runs through a park next door.

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

The World's First 24 Hour Coin-Operated Art Gallery!! Plastic, Styrofoam, and Elvis--If you can't get rid of it, you might as well worship it!!

A psychedelic labyrinth on the San Francisco bay.

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.

This shifting North Carolina sand dune is an odd little desert surrounded by oceanic forest life.

The actual model from the original "Star Trek" series is now on display at the National Air and Space Museum.

One day a year it is legal to jump off of this astoundingly tall bridge that spans an Appalachian gorge.

The last of Philadelphia's wood-paved streets is now a landmark of terrible engineering.

Instruments, apparatus, and rare books all relating to chemistry and its related sciences.

The sounds of the world's largest fully functioning pipe organ dazzle shoppers at a Philadelphia Macy's.

These lush botanical gardens employ the most purrfect pest control force.

The largest university building in the West is a gothic masterpiece containing dozens of theme rooms based on different countries.

Niagara Falls holds a special place in Nikola Tesla's history, so they put a statue on it.

Canada's subterranean Cold War museum has doubled as a movie set.

Running under an entire mountain, the longest highway tunnel in North America is kept fresh using portal fans and jet fans.

This small city where almost everyone lives in the same building can only be reached via North America's longest tunnel.

One of two side-by-side totem pole parks dedicated to educating visitors on Tlingit history and culture.

This tiny square mile of Canadian sand was once considered the world's smallest desert.

The world's second largest single-dish radio telescope, once used to contact E.T.

Rumored to be the famed pirate's lookout tower, this historic stone structure is now just watching for tourists.

An important Mayan religious and trading center dating back to 200 BC.